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Parachute Shock Loads
Drogue
Main
The Telemetrum switches the state to "main" at 298.22 seconds. Shown by the red line in the graph below, this indicates that the Raven fired the Tender Descenders first. Also shown by this graph is that main opening appears to take approximately seconds and be an approximately constant opening force (main opening is shown approximately by the dashed vertical green lines).
This is not exactly what I would expect–I would expect that as the canopy changes shape during the filling process, the opening force changes somewhat.
E-match voltage anomaly
Post flight data review notes abnormal voltage readings on Telemetrum apogee channel. Despite commanding an apogee event, the Telemetrum continued reading 4.2V across the channel for the remainder of flight. The e-match should register a significant increase in resistance within 10 mS of exceeding it's no-fire current of no fire current here. This suggests that the initiator misfired. A fishbone analysis was conducted to classify the nature of the issue. Evidence collection is ongoing, however it appear probable that the Telemetrum e-match is internally shorted, either autogenously or to the piston.
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